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SOLVED!

AC 28 Skylight Roof cut fill default can't be changed

Brad Elliott
Enthusiast

I have a project that has been brought up from AC 26. I have added a skylight to the roof and am getting a brick pattern in the roof cut. I have tried various materials as well a basic and composite structures but still have the same pattern.

If I turn the lining off it shows up clearly in he 3d model which I have attached. I tried turning the lining on as a work around and it covers in the 3d view but the brick pattern still shows up in sections and elevations.

 

How do I change or hide this pattern?

Skylight Brick.png

 

Operating system used: Mac Apple Silicon 12 Monterey

Mac OS12.6 AC26 USA Silicon
M1 Macbook Pro
1 ACCEPTED SOLUTION

Accepted Solutions
Solution

Thanks Barry,

That was so close and got me to the answer when I went to show you why it didn't work. I'll give the answer here in case someone else ever has this problem. Also, I'm not sure why your part seems to be acting correctly.

In classic ArchiCAD fashion it is a turned off setting that is for a surface displayed wrong.

If you look at my previous uploads the surfaces were By Building Materials because I don't like to use overrides. When this came up as brick the first thing I tried was the override shown by Barry but it didn't work. I have attached a new screen shot showing that as the condition.

When I went to show that the Surface Override shown doesn't work I clicked link surfaces for no reason and the surface changed. It was the unclicked GENERAL setting on the bottom surface that has the brick.

With By Building Materials turned on the unselected bottom surface modifies the edge material only and does not affect the bottom surface. With Surface Override on the bottom surface affects the bottom and skylight cut but not the outer surface. See the attached screen shots.

 

And finally, It appears in the course of bringing this file through at least 2 ArchiCAD generations that the GENERAL surface no longer has fill attached and  selected the brick as the #1 surface. However, when I go to the surfaces window GENERAL does not exist? It is also not in the attribute manager. Where would I find it?

 

No Overrides General Surface.png

No Overrides Metal Surface.png

Override Outer Surface Only.png

Mac OS12.6 AC26 USA Silicon
M1 Macbook Pro

View solution in original post

10 REPLIES 10
Laszlo Nagy
Community Admin
Community Admin

What is the exact name of the Library Part you are using?

Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy
AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac28

It's Skylight Flat Panel 27

 

Skylight Settings.png

General Settings.png

  

Mac OS12.6 AC26 USA Silicon
M1 Macbook Pro

Looks to me like that brickwork is your roof?

You have  a zero height curb in the object so the curb material will have no effect.

Looks like you have also turned off the lining.

 

So you are seeing the edge of your roof and need to change the edge material of the roof.

 

Barry.

One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11

Barry,

Yes, I had the lining turned off in the 3d image to show that it was overriding the steel material. I have attached two more images.

The one shows the lining turned on and covering the brick veneer. The second shows the brick veneer showing through the lining with the Elevation tool.

I'm starting to wonder if anyone else has ever used this library part? When I open a fresh AC28 template with the weird 28/27 library it is clear that the part is overriding surface of the cut roof. I'm just not able to figure out what it is. Using the attribute manager the surfaces and materials have the same id's in the two projects.

 

Steel Roof Section.png

Brick Veneer through Liner.png

Mac OS12.6 AC26 USA Silicon
M1 Macbook Pro

Can you show the expanded view of your roof surfaces?

I am guessing that the edges might be set to brick?

 

With no curbing and no trim, the skylight has no effect on the roof edge (for me at least).

That is all controlled in the roof settings.

 

BarryKelly_0-1743730406247.png

 

Barry.

One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11
Solution

Thanks Barry,

That was so close and got me to the answer when I went to show you why it didn't work. I'll give the answer here in case someone else ever has this problem. Also, I'm not sure why your part seems to be acting correctly.

In classic ArchiCAD fashion it is a turned off setting that is for a surface displayed wrong.

If you look at my previous uploads the surfaces were By Building Materials because I don't like to use overrides. When this came up as brick the first thing I tried was the override shown by Barry but it didn't work. I have attached a new screen shot showing that as the condition.

When I went to show that the Surface Override shown doesn't work I clicked link surfaces for no reason and the surface changed. It was the unclicked GENERAL setting on the bottom surface that has the brick.

With By Building Materials turned on the unselected bottom surface modifies the edge material only and does not affect the bottom surface. With Surface Override on the bottom surface affects the bottom and skylight cut but not the outer surface. See the attached screen shots.

 

And finally, It appears in the course of bringing this file through at least 2 ArchiCAD generations that the GENERAL surface no longer has fill attached and  selected the brick as the #1 surface. However, when I go to the surfaces window GENERAL does not exist? It is also not in the attribute manager. Where would I find it?

 

No Overrides General Surface.png

No Overrides Metal Surface.png

Override Outer Surface Only.png

Mac OS12.6 AC26 USA Silicon
M1 Macbook Pro
Laszlo Nagy
Community Admin
Community Admin

Brad,

 

What I don't understand in this whole thing is this:

When you override the Roof Bottom Surface (the Brick), it is not the Bottom Surface of the Roof that gets overridden; it is the side Surface of the Roof Hole (also considered an Edge). Is that correct? That light pink Edge Override color should override the sides (it does correctly) and the sides of the Roof Hole (it does not do that).

Could you show me a screenshot of just the Roof element, the whole Roof, and how the overrides affect all its various surfaces?

Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy
AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac28

I don't particularly understand it either but it is tied to the GENERAL surface that I am unable to find or modify. It still isn't completely correct because if I select a different bottom surface it still wraps inside the skylight cut but at least it shows what it is. If I delete the skylight it all shows correctly.

 

Plywood.png

 

Blue.png

 

General.png

Mac OS12.6 AC26 USA Silicon
M1 Macbook Pro
Laszlo Nagy
Community Admin
Community Admin

That behavior looks like a bug to me, so I will report it to GS HQ.

Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy
AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac28

Setup info provided by author